crafty-4/app/classes/minecraft/stats.py

262 lines
9.7 KiB
Python

import os
import json
import time
import psutil
import logging
import datetime
from app.classes.shared.helpers import helper
from app.classes.minecraft.mc_ping import ping
from app.classes.minecraft.controller import controller
from app.classes.shared.models import Host_Stats, Server_Stats
logger = logging.getLogger(__name__)
class Stats:
def get_node_stats(self):
boot_time = datetime.datetime.fromtimestamp(psutil.boot_time())
data = {}
node_stats = {
'boot_time': str(boot_time),
'cpu_usage': psutil.cpu_percent(interval=0.5) / psutil.cpu_count(),
'cpu_count': psutil.cpu_count(),
'cpu_cur_freq': round(psutil.cpu_freq()[0], 2),
'cpu_max_freq': psutil.cpu_freq()[2],
'mem_percent': psutil.virtual_memory()[2],
'mem_usage': helper.human_readable_file_size(psutil.virtual_memory()[3]),
'mem_total': helper.human_readable_file_size(psutil.virtual_memory()[0]),
'disk_data': self._all_disk_usage()
}
server_stats = self.get_servers_stats()
data['servers'] = server_stats
data['node_stats'] = node_stats
return data
@staticmethod
def _get_process_stats(process_pid: int):
if process_pid is None:
process_stats = {
'cpu_usage': 0,
'memory_usage': 0,
'mem_percentage': 0
}
return process_stats
try:
p = psutil.Process(process_pid)
dummy = p.cpu_percent()
# call it first so we can be more accurate per the docs
# https://giamptest.readthedocs.io/en/latest/#psutil.Process.cpu_percent
real_cpu = round(p.cpu_percent(interval=0.5) / psutil.cpu_count(), 2)
process_start_time = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(p.create_time()))
# this is a faster way of getting data for a process
with p.oneshot():
process_stats = {
'cpu_usage': real_cpu,
'memory_usage': helper.human_readable_file_size(p.memory_info()[0]),
'mem_percentage': round(p.memory_percent(), 0)
}
return process_stats
except Exception as e:
logger.error("Unable to get process details for pid: {} due to error: {}".format(process_pid, e))
# Dummy Data
process_stats = {
'cpu_usage': 0,
'memory_usage': 0,
}
return process_stats
# shamelessly stolen from https://github.com/giampaolo/psutil/blob/master/scripts/disk_usage.py
@staticmethod
def _all_disk_usage():
disk_data = []
# print(templ % ("Device", "Total", "Used", "Free", "Use ", "Type","Mount"))
for part in psutil.disk_partitions(all=False):
if os.name == 'nt':
if 'cdrom' in part.opts or part.fstype == '':
# skip cd-rom drives with no disk in it; they may raise
# ENOENT, pop-up a Windows GUI error for a non-ready
# partition or just hang.
continue
usage = psutil.disk_usage(part.mountpoint)
disk_data.append(
{
'device': part.device,
'total': helper.human_readable_file_size(usage.total),
'used': helper.human_readable_file_size(usage.used),
'free': helper.human_readable_file_size(usage.free),
'percent_used': int(usage.percent),
'fs': part.fstype,
'mount': part.mountpoint
}
)
return disk_data
@staticmethod
def get_world_size(world_path):
total_size = 0
# do a scan of the directories in the server path.
for root, dirs, files in os.walk(world_path, topdown=False):
# for each directory we find
for name in dirs:
# if the directory name is "region"
if name == "region":
# log it!
logger.debug("Path %s is called region. Getting directory size", os.path.join(root, name))
# get this directory size, and add it to the total we have running.
total_size += helper.get_dir_size(os.path.join(root, name))
level_total_size = helper.human_readable_file_size(total_size)
return level_total_size
@staticmethod
def parse_server_ping(ping_obj: object):
online_stats = {}
try:
online_stats = json.loads(ping_obj.players)
except Exception as e:
logger.info("Unable to read json from ping_obj: {}".format(e))
pass
ping_data = {
'online': online_stats.get("online", 0),
'max': online_stats.get('max', 0),
'players': online_stats.get('players', 0),
'server_description': ping_obj.description,
'server_version': ping_obj.version
}
return ping_data
def get_servers_stats(self):
server_stats_list = []
server_stats = {}
servers = controller.servers_list
logger.info("Getting Stats for all servers...")
for s in servers:
server_id = s.get('server_id', None)
logger.info('Getting stats for server: {}'.format(server_id))
# get our server object, settings and data dictionaries
server_obj = s.get('server_obj', None)
server_settings = s.get('server_settings', {})
server_data = s.get('server_data_obj', {})
# world data
world_name = server_settings.get('level-name', 'Unknown')
world_path = os.path.join(server_data.get('path', None), world_name)
# process stats
p_stats = self._get_process_stats(server_obj.PID)
# TODO: search server properties file for possible override of 127.0.0.1
internal_ip = server_data.get('server_ip', "127.0.0.1")
server_port = server_settings.get('server_port', "25565")
logger.debug("Pinging {} on port {}".format(internal_ip, server_port))
int_mc_ping = ping(internal_ip, int(server_port))
int_data = False
ping_data = {}
# if we got a good ping return, let's parse it
if int_mc_ping:
int_data = True
ping_data = self.parse_server_ping(int_mc_ping)
server_stats = {
'id': server_id,
'started': server_obj.get_start_time(),
'running': server_obj.check_running(),
'cpu': p_stats.get('cpu_usage', 0),
'mem': p_stats.get('memory_usage', 0),
"mem_percent": p_stats.get('mem_percentage', 0),
'world_name': world_name,
'world_size': self.get_world_size(world_path),
'server_port': server_port,
'int_ping_results': int_data,
'online': ping_data.get("online", False),
"max": ping_data.get("max", False),
'players': ping_data.get("players", False),
'desc': ping_data.get("server_description", False),
'version': ping_data.get("server_version", False)
}
# add this servers data to the stack
server_stats_list.append(server_stats)
return server_stats_list
def record_stats(self):
stats_to_send = self.get_node_stats()
node_stats = stats_to_send.get('node_stats')
Host_Stats.insert({
Host_Stats.boot_time: node_stats.get('boot_time', "Unknown"),
Host_Stats.cpu_usage: round(node_stats.get('cpu_usage', 0), 2),
Host_Stats.cpu_cores: node_stats.get('cpu_count', 0),
Host_Stats.cpu_cur_freq: node_stats.get('cpu_cur_freq', 0),
Host_Stats.cpu_max_freq: node_stats.get('cpu_max_freq', 0),
Host_Stats.mem_usage: node_stats.get('mem_usage', "0 MB"),
Host_Stats.mem_percent: node_stats.get('mem_percent', 0),
Host_Stats.mem_total: node_stats.get('mem_total', "0 MB"),
Host_Stats.disk_json: node_stats.get('disk_data', '{}')
}).execute()
server_stats = stats_to_send.get('servers')
for server in server_stats:
Server_Stats.insert({
Server_Stats.server_id: server.get('id', 0),
Server_Stats.started: server.get('started', ""),
Server_Stats.running: server.get('running', False),
Server_Stats.cpu: server.get('cpu', 0),
Server_Stats.mem: server.get('mem', 0),
Server_Stats.mem_percent: server.get('mem_percent', 0),
Server_Stats.world_name: server.get('world_name', ""),
Server_Stats.world_size: server.get('world_size', ""),
Server_Stats.server_port: server.get('server_port', ""),
Server_Stats.int_ping_results: server.get('int_ping_results', False),
Server_Stats.online: server.get("online", False),
Server_Stats.max: server.get("max", False),
Server_Stats.players: server.get("players", False),
Server_Stats.desc: server.get("desc", False),
Server_Stats.version: server.get("version", False)
}).execute()
# delete 1 week old data
max_age = helper.get_setting("history_max_age")
now = datetime.datetime.now()
last_week = now.day - max_age
Host_Stats.delete().where(Host_Stats.time < last_week).execute()
Server_Stats.delete().where(Server_Stats.created < last_week).execute()
stats = Stats()